How to install a supply and exhaust ventilation system in a private house with your own hands

In order to maintain a comfortable and healthy living environment all year round, installing a supply and exhaust ventilation system in your private residence can greatly improve the quality of the air. These systems balance the indoor climate and lessen the chance of mold and other moisture-related problems by drawing in fresh air and pushing out stale, humid air. There are a few crucial steps and things to remember if you’re a do-it-yourself enthusiast wanting to tackle this project.

Understanding the system’s components and how they interact is essential before beginning the installation process. Ducts, vents, an air handling unit, and perhaps heat recovery units are the essential components if energy efficiency is your goal. A well-defined plan and an understanding of how each component fits into the architecture of your home can facilitate a smoother and more efficient installation.

To guarantee ideal airflow, the intake and exhaust vent locations must be chosen carefully. To stop ejected air from returning, you should position exhaust vents away from windows and doors and steer clear of dusty or polluted areas for the intake vents. Additionally, you can maximize efficiency and reduce noise levels in your system by carefully planning the layout of your ductwork.

Last but not least, a successful installation depends on having the appropriate equipment and supplies on hand, including duct tape, screws, and insulation. Even though the task may seem difficult at first, if you take it step-by-step and make sure everything is safe and sealed, you should be able to complete the task with great satisfaction. You can enjoy a fresher, healthier living environment by improving the ventilation in your home with careful planning and execution.

Step	Description
1. Plan	Determine the layout for ducts based on room sizes and locations. Decide on the locations for intake and exhaust vents.
2. Gather Materials	Buy all necessary supplies, including ducts, vents, a heat recovery unit, and installation tools.
3. Install Ducts	Start by installing the duct network throughout your house, ensuring secure and sealed connections.
4. Set Up Vents	Install intake vents in areas like living spaces and bedrooms, and exhaust vents in bathrooms and kitchen.
5. Install Unit	Mount the heat recovery unit in a suitable location, such as the attic or utility space, connecting it to the ductwork.
6. Check Airflow	Ensure that air flows correctly through the system, adjusting vents and ducts as needed.
7. Final Testing	Test the system thoroughly to ensure it operates efficiently. Check for leaks or blockages.

The principle of operation and the need for supply and exhaust ventilation in a private house

Another name for this kind of ventilation is "forced." It is outfitted with electrical appliances that pump and encourage airflows, in contrast to the option that uses natural circulation.

Designs featuring forced air exchange systems come with heating elements, noise lords, electronics, and fans of different sizes. These gadgets are all made to provide ecologically friendly oxygen to buildings, which promotes interior comfort and a feeling of freshness.

These components will enable the house to have efficient ventilation.

The following circumstances make the supply and exhaust type of air exchange effective, in contrast to natural ventilation:

1. The minimum difference in the temperature indoors and on the street, when the rising warm air, cannot create traction.
2. With a pressure drop between the upper and lower level of the structure.

This kind of ventilation is required in areas with contaminated air, residential buildings, and buildings with multiple rooms situated at different levels. Thanks to specific filters built into the system, the supply and exhausting method of ventilation will not only change the air in the room but also purify it.

In addition to performing standard filtration through a layer of foam, the design can also accomplish this task by means of an ultraviolet-glow lamp.

A system of forced ventilation that works well

Not only should the ventilation system be installed during home construction, but it should also be included when building a bathhouse. Visit our article at https:// aqua-rmnt.COM/Ventilyaciya/Kak-SDELAT-WENTILYATSIYU-V-BANE-3.HTML to learn more about this.

The following functions crucially in the supply and exhaust system:

• engine power and fans;
• filter material class;
• the size of the heating element;
• Material quality and type of air ducts.

Fans

Fans provide the air masses with forced movement. Three blade speed settings are available for basic models:

• normal;
• low (used for "quiet" work in a night period or during the absence of owners);
• high, (used to create powerful air flows).

Contemporary fan models are designed with a wide range of speeds to meet the needs of any owner. Electronic and automatic controllers bring fans into the modern era. By doing this, the device can be programmed to select different blade turnover speed modes. Ventilation and the Smart House system can be synchronized with electrical equipment.

Reputable manufacturers should be prioritized when making a selection.

The fans should be of the highest caliber because the ventilation system is intended to operate continuously for an extended period of time.

Filters

Filters must be used to clean the supply air masses. Filtering layers in recuperators are capable of delaying particles smaller than 0.5 microns. This parameter is in line with the standards used in Europe. A filter with this bandwidth would not allow dust, dry soot, plant pollen, or mushroom spores to enter the space.

Owners of allergic diseases should especially make use of this device.

Multiple filter barriers can be installed in front of heat-exchanging devices as part of the ventilation duct design. Nonetheless, the purpose of these filters is to shield them from exhaust streams that contain dirt.

Constructed with multiple layers

Electronic sensors that detect the maximum level of filter pollution and signal with a light or sound are a feature of rehabilitation systems.

Heating elements

Heating elements must be installed as part of the supply and exhaust ventilation system because heat exchangers become inefficient at temperatures below -10 °C. An electrical heating system of accumulated air is installed on the supply channel to accomplish this.

Contemporary heating elements are configured to operate in a specific way. This eliminates the need for unnecessary interference when controlling the temperature. Typically, the Smart House system is synchronized and computerized heating elements are installed.

The owner’s preferences as well as the specifications of the entire ventilation system are taken into consideration when choosing the size, power, shape, and design of the heating elements.

Will ensure a comfortable temperature

Consideration should be given to external low temperature and high humidity when selecting a califfer power. These circumstances will make it more likely that condensate, which eventually solidifies into ice, will form on the heat exchanger’s internal components. There are two approaches to solving this issue:

1. Change the order of operation of the supply fan. It must be turned on every 20-30 minutes for 5-10 minutes. Heated air flow passing through the heat exchanger excludes glaciation.
2. Change the direction of movement of cold air flows. For this, supply air masses are separated, directing their flows past the heat exchanger.

Air ducts

The most practical places to install ventilation are in the building that is still being built, such as basements, attics, or behind suspended panels. It should be mentioned that this system needs to be installed in a dry, well-insulated room that is at room temperature.

Flexible aluminum or plastic air ducts are the most widely used and convenient types. The cross sections of the pipes are square, rectangular, or round. This material has a steel wire frame for reinforcement, and it can also have a layer of heat-insulating mineral fibers, like mineral wool, covering it.

They need to have thermal insulation applied to them.

You can learn more about how the ventilation is set up in the bathroom from our upcoming article at https:// aqua-commnt.COM/Ventilyaciya/Kak-SDELAT-WENTILYATSIYU-V-BANE-2.HTML.

Installing a supply and exhaust ventilation system in your private home by yourself can be a rewarding project that significantly improves air quality and energy efficiency. Start by designing the system layout, considering the balance between air supply and exhaust to maintain a comfortable indoor environment. Choose the right spots for inlet and outlet vents to facilitate smooth airflow, ensuring that exhaust points are away from fresh air intakes to avoid contamination. Use insulated ducts to prevent heat loss and condensation, especially in unheated areas like attics or basements. Regular maintenance checks after installation will help keep the system running efficiently and prolong its lifespan, ultimately creating a healthier living space while potentially reducing heating and cooling costs.

Supply and exhaust ventilation with heat recovery

A system like that would imply that it runs during the winter. In order to prevent cold drafts from entering the house, the system needs to be updated with an air recuperator, a heat-exchanging device. When the outgoing is disposed of, the device warms the cold air.

With the aid of air intakes, moist air that has accumulated in the utility room, bathroom, or kitchen is directed outside. It is held up in a heat exchanger, which absorbs some of the heat and gives it back the opposite (an air supply of air masses), before it exits the ducts.

The Naveka installations, Node 5 series, offer a good option for recovery with a partial return of moisture: https:// Progress-nw.ru/shop?PART = USTANOVKIVENTILYTSINYEENODE5.

The device’s basic method of operation

Recuperator-equipped systems became very popular in Western European nations. Buildings constructed in these areas lose 5–10 times less heat than those constructed without these systems because of this equipment. The cost of producing heat was lowered by 65–68% by disposing of heated exhaust flows. This allowed for the recovery of such a system over a four to five year period. The houses that have this system enabled to shorten the heating period due to their energy efficiency.

The area and location of the ventilated premises determine the size and power of the supply and exhaust systems with recuperators.

Astute homeowners install forced air and natural gas in their houses (with heat recovery). This is required in the event that the mechanical air exchange system needs to be repaired. Using natural ventilation during the colder months is convenient.

You should follow the guidelines when using two ventilation systems in your home: forced air exchange requires that natural ventilation air ducts be securely closed.

The quality of the air update using the supply and exhaust system will drastically decline if this is ignored.

The recuperators listed below are the most frequently utilized in ventilation systems:

• plate;
• rotary;
• with intermediate coolant;
• chamber;
• in the form of heat pipes.

Plastic recuperators

Both cold and warm air flows pass through the plates in this device. This aids in the condensation that forms on them. To that end, such structures are equipped with specialized taps for collected water. Shutters preventing fluid from entering the channel should be installed in moisture collection chambers. When water droplets enter the system, ice may form. Thus, a defrosting system is required for the device to function normally.

By keeping an eye on the bypass valve’s operation, which controls how many air flows through the device, ice can be prevented from forming.

Plastic recuperators have proven to be highly efficient, with up to 90% efficiency. They became well-liked by homeowners of multi-story homes because of this feature.

The design’s feature makes it more effective.

Rotary

As the rotor discs rotate, heat is transferred through the supply and removed channels in this device. Particles from the components of this system can travel from one air flow to another since they are not sealed off from dirt or odors.

The rotor discs’ rotation speed can be adjusted to regulate the recovery of warm air flows.

This device’s working elements are dynamically mobile, which makes it less prone to freezing than the previous one. These devices have an efficiency of 75–85%.

Outfitted with movable components

Recuperators with intermediate coolant

In this recuperator design, water or a water-glycole solution is used as a coolant. This species is unique in that it has two heat exchangers in separate channels—one in the supply and the other in the exhaust. Through the tubes, water is transferred between the two heat exchangers. The system in the design is closed. By doing this, the supply flow is kept free from pollution entering from the remote air.

The coolant moisture’s speed of movement changes to control heat transfer.

These devices have a 45–60% effectiveness because they lack mobile components.

Lacks any mobile components

Chamber

In this design, the change in air flow direction results in heat exchange. Devices known as chamber recuperators typically take the shape of a rectangular parallelepiped and have a split camera. In the process, air masses are reoriented to cause the supply flow’s temperature to rise out of the chamber’s heated case. This recuperator’s drawback is that odors and grime can contaminate the air being removed and supplied.

The camera’s internal streams may mix.

Heat tubes

These recuperators are enclosed in a sealed casing that houses a freon-filled tube system. The material becomes steam when exposed to high temperatures (during the air removal process). Steam condenses into droplets that form a liquid as the supply masses move through the tubes. Such recuperators are designed to prevent the transfer of dirt and odors. This device’s case has low efficiency (45–65%) because it lacks mobile elements.

The work is predicated on the freon’s temperature fluctuations.

The most popular types were the rotary and plate types because of their high efficiency. Recuperator designs can be modernized by adding two plate-type heat exchangers in succession, for instance. These types of ventilation become more effective.

PVA design

The type of this device must be determined when designing a ventilation system because not every owner will be able to handle its power and electricity consumption. In this sense, it is preferable to set up natural ventilation if forced ventilation is not required.

Every ventilation system has unique regulations regarding the amount of air it can transmit in an hour.

• For the natural version, this norm is 1m³/h;
• for forced – in the range from 3 to 5 m³/h.

Forced ventilation is recommended when designing a ventilation system for large spaces.

Ventilation system design and installation is a technically challenging procedure that involves multiple steps:

1. The first stage consists of drawing up drawings and collecting data on premises. Based on the established information, the type of ventilation system is selected, and the power of the equipment is determined.
2. At the second stage, the necessary calculations are made on the volume of air exchange, each room in the house. This is a crucial moment of design, since incorrect calculations, in the future, will cause stagnant air, the appearance of mold and fungi and a sense of stuffiness.
3. The third stage is to conduct calculations of sections for air ducts. This is also an important point, since incorrect calculations will cause the low efficiency of the entire system, despite the expensive equipment. Therefore, it is better to entrust calculations to specialists than to do it yourself. For the correct calculation of the size of the air ducts are guided by the basic rules:

• In the natural extract, the air flow rate must correspond to 1m/s;
• in air ducts equipped with fans, this parameter is 5 m/s;
• In the branches of air ducts, the speed of air masses is 3 m/s.

1. At the fourth stage, a circuit of the ventilation system is drawn up indicating the separation valves. The purpose of this stage correctly distribute the barriers to prevent the spread of smoke and fire in a fire.
2. The fifth stage is the coordination of the selected system with current regulatory documents and the rules for installing and placing and placing. The finished project of the ventilation system must be approved by the fire, sanitary-hygienic and architectural organization. Obtaining permits from all these services and state bodies gives the right to install.

Calculations

The quantity of exchangeable air in the room for a specific period of time must be considered when calculating the supply and exhaust ventilation systems. The cubic meter per hour (m³/h) is the unit of measurement.

You must compute the passage of air flows and add 20% (the resistance of the filter layers and grilles) in order to use this indicator in the calculations.

Calculation of air volume

An air volume was computed as an example for a private home with a 2.5 m ceiling height. In addition, the system will service the kitchen (9 m2), toilet (7 m2), hallway (15 m2), and three sleeping rooms (11 m²). Values (3 ∙ 11+15+7+9) ∙ 2.5 = 160 m³ can be substituted.

It is required to round the received data towards the increase when performing computations.

The installed recuperator needs to match the power of every exhaust and supply system fan. To achieve this, the fan performance (i.e., the resistance of air flows in the system) must be reduced by 25%. Fans are required at the recuperator’s entrance and exit.

It should be mentioned that one supply and one puping fan should be installed in each room of the house where the system is located. The following formula is used to determine each one’s necessary performance:

1. Sleeping room: 11 ∙ 2.5 = 27.5+20%= 33 m³/h. Since there are three sleeping rooms with the same area in the house, it is necessary to multiply this value by three: 33 ∙ 3 = 99 m³/h.
2. Entrance hall: 15 ∙ 2.5 = 37.5+20%= 45 m³/h.
3. Toilet: 7 ∙ 2.5 = 17.5+20%= 21 m³/h.
4. Kitchen: 9 ∙ 2.5 = 22.5+20%= 27 m³/h.

The total performance of the fans can now be calculated by adding these numbers: 99+45+21+27 = 192 m³/h.

The recuperator will be under load at 192–25%, or 144 m³/h.

Diameter calculation of the ventilation canal

The following formula for determining cross-sectional area must be used to determine the diameter of the ventilation duct: f = l/(s ∙ 3600), where s is the average air movement of 1 M/s and L is the total number of air masses passing in an hour. We replace the values with: 0.0533 m² = 192/(1 m/s ∙ 3600).

The following formula must be applied in order to determine the radius of the pipe with a round section: r = √ (f: π), where F is the duct’s section, π is its mathematical value, and R is the radius of a round pipe. As an illustration, consider this: 1.67 m^ = √ (0.0533 ∙ 3.14).

Calculation of electricity

A properly computed electricity usage will use the ventilation system in a reasonable manner. This is particularly crucial if the air ducts’ design incorporates heating components.

The following formula should be used to determine the amount of energy consumed: m = (T1 ∙ L ∙ D ∙ 16+T2 ∙ L ∙ C ∙ N ∙ 8) ∙ AD: 1000, where M is the total cost of the electricity used; T1 and T2 are the differences in temperature between the day and night (the values vary depending on the month of the year); D and N are the costs of electricity according to the time of day; A, d are the total number of days in a given calendar month.

No reference books are needed because air temperature indicators are simple to understand from local weather forecasts. The tariff dimensions are set based on the resident’s region. You can obtain precise estimates of the amount of electricity used to run the ventilation system by using these sources.

The equipment installation procedure

Before installing the suspended ceiling panels, the equipment components of the supply and exhaust ventilation system are installed following the wall decoration. The ventilation system’s components are installed in a specific order:

1. The first is the fence valve.
2. After it – a filter of cleaning the incoming air.
3. Then an electric heater.
4. Heat excuse – recuperator.
5. Duct cooling system.
6. If necessary, the system is equipped with a moisturizer and fan to the supply channel.
7. If ventilation of high power, then the device is installed insulating noise.

Enhancing the energy efficiency and air quality of your private residence can be accomplished by installing a supply and exhaust ventilation system. By taking on this project on your own, you’ll be able to better understand how your home works and tailor the system to meet the unique needs of your house. This type of system lowers your home’s risk of mold, allergies, and other airborne pollutants by ensuring that fresh air is supplied and helping to regulate indoor temperatures.

Making the proper material and tool selections and carefully planning the installation process are crucial. You can avoid potential issues by making sure that the structural layout of your home is clear. Even though the task might initially seem overwhelming, if you approach it step-by-step, it can become manageable and even enjoyable. Remember that maintaining the long-term effectiveness of your ventilation system depends on precise measurements and adherence to safety procedures.

Lastly, even though do-it-yourself projects can be rewarding and economical, if you run into complicated problems—particularly when working with electrical connections or structural modifications—don’t be afraid to seek professional advice. Seeking guidance or having an expert evaluate your installation plan can help you avoid costly errors and guarantee the safe and efficient operation of your ventilation system. You will improve the comfort and air quality of your house as well as its value and functionality by finishing this project.

Video on the topic

How ventilation in my house?

6 ventilation options in a private house

Home ventilation – how to make cheap!

Proper ventilation in a private house! Installation of ventilation! Ventilation in the frame house!